A remote centralized system and control method for aircraft engine hydraulic product testing equipment

Abstract

The present invention discloses a remote centralized system for aero-engine hydraulic product test equipment. The system includes: a test equipment industrial control module for executing test steps of an automated process file; a centralized control system operation server for system operation management; a remote control module for compiling automated process files and sending commands to execute automated process files after logging into the centralized control system operation server; a remote emergency stop button for realizing remote emergency stop; a central switch for data interaction between the test equipment industrial control module, the centralized control system operation server and the remote control module; an emergency stop PLC master station for realizing automatic matching between the remote control module and the emergency stop button, and sending an emergency stop command to the emergency stop PLC slave station; and an emergency stop PLC slave station for receiving an emergency stop command and sending an emergency stop command to the test equipment. The present invention realizes centralized and standardized control of non-standard test equipment, and avoids potential safety hazards caused by network communication failures.

Description

Technical Field

[0001] The invention belongs to the technical field of aero-engine testing, and in particular relates to a remote centralized system and a control method for aero-engine hydraulic product testing equipment. Background Art

[0002] During the development of aircraft engine fuel control system products, life tests are required to verify whether their service life meets the design requirements. Each product needs to occupy a test equipment and be equipped with a test operator to operate it during the life test. The mechanical and hydraulic products of turboshaft turboprop engines have complex structures. The test process involves multiple control command operations such as pressure, speed, and electronic control signals. The operation steps are complicated and require high technical skills of operators. With the improvement of product design level, product life has increased significantly, and the number of life test hours has increased significantly, and the human resources occupied by life tests have increased significantly. In order to reduce human resource consumption, remote centralized control methods are usually used to carry out tests. Because the test equipment of mechanical and hydraulic products of turboshaft turboprop engines is non-standard test equipment, the functions and control methods of different equipment are quite different. At present, only remote start and stop control of test equipment can be realized. The execution of specific steps of the test equipment depends on the local automatic control program. The automatic control program is difficult to edit, and the technical level of the test operator is required to be high. Summary of the invention

[0003] The purpose of the present invention is to provide a remote centralized system and control method for aero-engine hydraulic product test equipment. The present invention realizes centralized and standardized control of non-standard test equipment and avoids safety hazards caused by network communication failures.

[0004] The technical solution of the present invention is: a remote centralized system for aeroengine hydraulic product testing equipment, comprising:

[0005] The test equipment industrial control module is used to execute the test steps of the automation process file;

[0006] Centralized control system operation server, used for system operation management;

[0007] Remote control module, used to log in to the centralized control system operation server to compile automation process files and send commands to execute automation process files;

[0008] Remote emergency stop button, used to realize remote emergency stop of the test industrial control module;

[0009] Central switch, used for data interaction between test equipment industrial control modules, centralized control system operation servers and remote control modules;

[0010] The emergency stop PLC master station is used to realize the automatic matching of the remote control module and the emergency stop button, and send the emergency stop command to the emergency stop PLC slave station;

[0011] The emergency stop PLC slave station is used to receive the emergency stop command issued by the emergency stop PLC master station and send the emergency stop command to the test equipment.

[0012] In the aforementioned remote centralized system of the aero-engine hydraulic product test equipment, data communication is performed between the test equipment industrial control module and the remote control module based on the OPC protocol.

[0013] In the aforementioned remote centralized system of the aero-engine hydraulic product testing equipment, an automated process editing platform is integrated on the centralized control system operation server for the preparation of automated process documents for the testing equipment.

[0014] In the aforementioned remote centralized system of the AEON hydraulic product testing equipment, the automated process editing platform integrates typical control signals of AEON hydraulic products that have been standardized and packaged.

[0015] In the aforementioned remote centralized system of the aero-engine hydraulic product testing equipment, typical control signals include speed control instructions, pressure control instructions, temperature control instructions, electronic controller control instructions, and high-frequency response time test instructions.

[0016] In the remote centralized system of the aforementioned aero-engine hydraulic product testing equipment, the high-frequency response time test instruction can realize the rapid action of the parking valve of the tested product through the industrial control module of the testing equipment, and collect all test data at the millisecond level, automatically identify the time from the issuance of the parking valve control instruction to the outlet pressure reaching a stable value, and feed back the time value to the remote control computer.

[0017] In the aforementioned remote centralized system of the AECC hydraulic product test equipment, the remote emergency stop button arranged in the emergency stop network can automatically match the remote control button and the test equipment while the remote control module sends a control command.

[0018] In the aforementioned remote centralized system of the AECC hydraulic product test equipment, the test equipment industrial control module includes more than one test equipment industrial control computers connected in parallel to the central switch.

[0019] In the aforementioned remote centralized system of the aero-engine hydraulic product testing equipment, the remote control module includes more than one remote control computer connected in parallel to the central switch.

[0020] The control method of the remote centralized system of the aforementioned aero-engine hydraulic product testing equipment:

[0021] Step 1: The test equipment manager configures the test equipment industrial control module and remote control module based on the OPC protocol;

[0022] Step 2: The process personnel log in to the centralized control system operation server on the remote control module and issue test tasks according to the model of the tested product and the test type; according to the test tasks, the automation process files are compiled in the automation process editing platform and published to the centralized control system operation server;

[0023] Step 3: The test operator logs in to the centralized control system operation server on the remote control module, receives the test task, and sends a command to execute the automation process file to the test equipment industrial control module; the test equipment industrial control module executes the test steps according to the automation process file.

[0024] The advantages of the present invention are as follows: the present invention designs a remote centralized control system, which realizes communication between remote computers and non-standard test equipment through the OPC protocol and a unified control platform, and realizes real-time issuance of control instructions and real-time upload of test data. The system is equipped with an automated process editing platform, which realizes standardized and simplified editing of automated process programs by standardizing and encapsulating control instructions. The remote emergency stop system solves the matching problem of the remote control module in the industrial control network and the remote emergency stop button in the backup network through the modes of the backup network, PLC master station and slave station. The design of the remote emergency stop system avoids safety hazards caused by network communication failures.

[0025] The present invention realizes standardized control of non-standard test equipment through a networked control platform, and at the same time greatly simplifies the editing process of the automated process program, upgrading the remote centralized control function of the non-standard test equipment from only controlling the start and stop of the equipment to the real-time issuance of control instructions for the entire test process and the real-time uploading of test data.

[0026] The present invention is based on the framework of the central switch and the OPC protocol, which can break the one-to-one correspondence limitation between the remote control computer and the industrial computer and realize free matching between the two.

[0027] The automated process editing platform of the present invention standardizes and encapsulates typical control signals of mechanical hydraulic products of aircraft engine mechanical hydraulic systems. During the test process design, only module combination is required without code-level compilation, which makes the design simpler and more efficient.

[0028] The present invention provides a remote emergency stop system to solve the problem of uncontrollable test equipment caused by network communication problems.

[0029] In summary, the present invention has built a networked control platform, remotely controlled computers and test equipment can be freely matched, an automated process editing platform has been established, centralized and standardized control of non-standard test equipment has been realized, and the editing process of automated process programs has been greatly simplified. This system innovatively proposes a remote emergency stop system to solve the problem of uncontrollable test equipment caused by network communication problems and avoid safety hazards caused by network communication failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is the architecture diagram of the remote centralized control system;

[0031] Figure 2 It is a schematic diagram of the automatic process program editing interface;

[0032] Figure 3 Schematic diagram of the automated process execution process.

[0033] Figure markings: 1-test equipment industrial computer Ⅰ, 2-test equipment industrial computer Ⅱ, 3-test equipment industrial computer Ⅲ, 4-centralized control system operation server, 5-remote control computer Ⅰ, 6-remote control computer Ⅱ, 7-remote control computer Ⅲ, 8-centralized control system storage server, 9-central switch, 10-emergency stop PLC master station, 11-emergency stop PLC slave station, 12-emergency stop PLC slave station Ⅱ, 13-emergency stop PLC slave station Ⅲ, 14-emergency stop button Ⅰ, 15-emergency stop button Ⅱ, 16-emergency stop button Ⅲ. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0035] Embodiment 1. A remote centralized system for aircraft engine hydraulic product testing equipment, comprising: Figure 1-3As shown, it is composed of test equipment industrial computer Ⅰ1, test equipment industrial computer Ⅱ2, test equipment industrial computer Ⅲ3, centralized control system operation server 4, remote control computer Ⅰ5, remote control computer Ⅱ6, remote control computer Ⅲ7, centralized control system storage server 8 and central switch 9, emergency stop PLC master station 10, emergency stop PLC slave station Ⅰ11, emergency stop PLC slave station Ⅱ12, emergency stop PLC slave station Ⅲ13, emergency stop button Ⅰ14, emergency stop button Ⅱ15, emergency stop button Ⅲ16. All test equipment industrial computers, remote control computers and servers in the system are connected through the central switch 9, so that any remote control computer can freely match any test equipment. A modularized automated process editing platform is set in the remote control computers 5, 6, and 7, which can realize the standardized editing of automated process programs. Test equipment industrial computers 1, 2, and 3 are respectively provided with emergency stop buttons 14, 15, and 16. The emergency stop buttons 14 , 15 , 16 and the emergency stop PLC slave stations 11 , 12 , 13 are connected to the emergency stop PLC master station 10 , and the PLC master station 10 is connected to the centralized control system operation server 4 .

[0036] The centralized control system operation server 4 is provided with an automated process editing platform, which standardizes and encapsulates all control programs of aircraft engine mechanical hydraulic products. The automated process program can be edited by simply modifying and combining the standardized control instructions. The automated process editing platform manages the automated process program through a database. Its database includes a program source database (a set of control instructions and acquisition instructions for each test equipment), a test program database (standardized automated control programs for different test types of each model), and a test model database (test objects of different models). The three databases are combined to form an automated process program for a specific test type of a characteristic model. The process program is transmitted to the test equipment through the OPC protocol, and the corresponding test steps can be executed and the corresponding data feedback can be received. A specific product can achieve a specific test goal on a specific test equipment.

[0037] The specific implementation method of the remote centralized control system includes an editing part and an execution part of the automation process program.

[0038] In the automated process program editing part, the test equipment, test object model and test type must be defined first. After the definition is completed, the "Test Sequence Editor" software can be used to compile the steps required in the test process into a "test sequence file" in order, that is, an automated test program package. A test sequence is composed of multiple test steps. The automated process editing platform has standardized and encapsulated the typical control signals (speed control, pressure control, temperature control, electronic controller control instructions, etc.) of aircraft engine mechanical hydraulic products. For example: in terms of speed setting, taking "adjust the main motor speed = 4000r / min" as an example, by selecting the control parameter name, setting the critical value, 4000r / min, setting the judgment parameter, that is, the upper and lower limits of the motor speed fluctuation allowed, setting the judgment time, and detecting the execution of the control instruction after the judgment time is reached. If the execution is in place, continue to the next step. If the execution is not in place, an alarm signal is fed back. After completing the relevant parameter settings, the speed control step editing can be completed. After the setting of a single test step is completed, the test steps can be combined. In terms of control type, it is divided into "sequential step", "loop step" and "conditional step". In terms of the set value type, it is divided into "single value" and "curve".

[0039] (1) Control type

[0040] Sequential steps: logically controlled, executed in order;

[0041] Loop step: In logic control, a certain step is looped multiple times until a certain condition is met;

[0042] Conditional step: Execute different steps based on the true or false value of a condition in logical control;

[0043] (2) Numeric type:

[0044] Single value: a data object, including the minimum value, maximum value, default value, current value, unit and other information of the object;

[0045] Curve: A data object consisting of multiple data points, used for process control of a control signal change;

[0046] The editing of the automated process program can be completed by setting the specific operation values ​​of a single test step and combining the operation steps.

[0047] Automated process execution part:

[0048] The test operator logs in to the remote centralized control system on any remote control computer 7 and selects the test project to be executed. The test process execution engine will be responsible for loading and parsing the "test process file" corresponding to the automation process. The actuator reads the steps and data from the sequence file, and the test bench completes the real enabling action to realize the automation of the test process. At the same time, the actuator determines whether the test bench has reached the required value setting by reading the data in the acquisition channel, and then executes the next step according to the step type in the "test sequence file". Complete the test operation.

[0049] The test operator logs into the remote centralized control system at any remote control computer and selects the test project to be executed. The remote control computer sends the matching information of the relevant test industrial computer and the remote control computer to the emergency stop PLC master station. The emergency stop PLC master station automatically matches the emergency stop button of the remote control computer with the emergency stop PLC slave station. When the emergency stop button is activated at any time during the test, the PLC slave station immediately executes the shutdown command to ensure the safe operation of the test bench.

[0050] Embodiment 2. A network-based remote centralized control system for a turboshaft turboprop engine mechanical hydraulic product test equipment, comprising: Figure 1-3 As shown, including:

[0051] The test equipment industrial control module is used to execute the test steps of the automation process file;

[0052] Centralized control system operation server, used for system operation management;

[0053] Remote control module, used to log in to the centralized control system operation server to compile automation process files and send commands to execute automation process files;

[0054] Remote emergency stop button, used to realize remote emergency stop of the test industrial control module;

[0055] Central switch, used for data interaction between test equipment industrial control modules, centralized control system operation servers and remote control modules;

[0056] The emergency stop PLC master station is used to realize the automatic matching of the remote control module and the emergency stop button, and send the emergency stop command to the emergency stop PLC slave station;

[0057] The emergency stop PLC slave station is used to receive the emergency stop command issued by the emergency stop PLC master station and send the emergency stop command to the test equipment.

[0058] The aforementioned test equipment industrial control module and remote control module communicate data based on the OPC protocol, which can achieve standardized communication between different versions of test equipment industrial control modules.

[0059] The aforementioned centralized control system operation server is integrated with an automated process editing platform for compiling automated process documents for test equipment.

[0060] The aforementioned automated process editing platform integrates the typical control signals of the Hangfa hydraulic products that have been standardized and packaged. The standardized packaging can simplify the compilation process of the automated process files.

[0061] The aforementioned typical control signals include speed control instructions, pressure control instructions, temperature control instructions, electronic controller control instructions and high-frequency response time test instructions.

[0062] The aforementioned high-frequency response time test instructions can realize the rapid action of the parking valve of the tested product through the industrial control module of the test equipment, and collect all test data at the millisecond level, automatically identify the time from the issuance of the parking valve control instruction to the outlet pressure reaching a stable value, and feed back the time value to the remote control computer.

[0063] The remote emergency stop button arranged in the emergency stop network can automatically match the remote control button and the test equipment while the remote control module sends the control command.

[0064] The aforementioned test equipment industrial control module includes more than one test equipment industrial control computers connected in parallel to the central switch.

[0065] The aforementioned remote control module includes more than one remote control computer connected in parallel to the central switch.

[0066] The control method of the remote centralized system of the aforementioned aero-engine hydraulic product testing equipment:

[0067] Step 1: The test equipment manager configures the test equipment industrial control module and remote control module based on the OPC protocol;

[0068] Step 2: The process personnel log in to the centralized control system operation server on the remote control module and issue test tasks according to the model of the tested product and the test type; according to the test tasks, the automation process files are compiled in the automation process editing platform and published to the centralized control system operation server;

[0069] Step 3: The test operator logs in to the centralized control system operation server on the remote control module, receives the test task, and sends a command to execute the automation process file to the test equipment industrial control module; the test equipment industrial control module executes the test steps according to the automation process file.

Claims

1. A remote centralized system for aircraft engine hydraulic product testing equipment, characterized in that: include: The test equipment industrial control module is used to execute the test steps of the automation process file; Centralized control system operation server, used for system operation management; Remote control module, used to log in to the centralized control system operation server to compile automation process files and send commands to execute automation process files; Remote emergency stop button, used to realize remote emergency stop of the test industrial control module; Central switch, used for data interaction between test equipment industrial control modules, centralized control system operation servers and remote control modules; The emergency stop PLC master station is used to realize the automatic matching of the remote control module and the emergency stop button, and send the emergency stop command to the emergency stop PLC slave station; Emergency stop PLC slave station, used to receive the emergency stop command from the emergency stop PLC master station and send the emergency stop command to the test equipment; The centralized control system operation server is integrated with an automated process editing platform for compiling automated process documents for test equipment; The automated process editing platform is integrated with typical control signals of the aerospace hydraulic products that have been standardized and packaged; The preparation of the automated process file is as follows: define the test equipment, test object model and test type; after the definition is completed, use the "test sequence editor" software to compile the steps required in the test process into a "test sequence file" in sequence, that is, an automated test program package; a test sequence is composed of multiple test steps; based on the typical control signal, set the specific operation value of each test step, and after each test step is set, combine the test steps to complete the preparation of the automated process file; The execution of the automation process file is as follows: log in to the remote centralized control system on the centralized control system running server in the remote control module, select the test project to be executed, the test process execution engine will be responsible for loading and parsing the "automation process file" corresponding to the automation process, the actuator reads the steps and data from the automation process file, and the test bench completes the real enabling action to realize the automation of the test process. At the same time, the actuator determines whether the test bench has reached the required numerical setting by reading the data in the acquisition channel, and then executes the next operation according to the step type in the "automation process file" to complete the test operation; log in to the remote centralized control system in the remote control module, select the test project to be executed, the remote control module sends the matching information of the test equipment industrial control module and the remote control module to the emergency stop PLC master station, and the emergency stop PLC master station automatically matches the emergency stop button corresponding to the remote control module with the emergency stop PLC slave station; start the emergency stop button at any time during the test, and the PLC slave station immediately executes the shutdown command to ensure the safe operation of the test bench.

2. The remote centralized system for aircraft engine hydraulic product testing equipment according to claim 1 is characterized in that: The test equipment industrial control module and the remote control module communicate data based on the OPC protocol.

3. The remote centralized system for aircraft engine hydraulic product testing equipment according to claim 1 is characterized in that: Typical control signals include speed control instructions, pressure control instructions, temperature control instructions, electronic controller control instructions and high-frequency response time test instructions.

4. The remote centralized system for aircraft engine hydraulic product testing equipment according to claim 3 is characterized in that: The high-frequency response time test instruction can realize the rapid action of the parking valve of the tested product through the industrial control module of the test equipment, and collect all test data at the millisecond level, automatically identify the time from the issuance of the parking valve control instruction to the outlet pressure reaching a stable value, and feed back the time value to the remote control computer.

5. The remote centralized system for aircraft engine hydraulic product testing equipment according to claim 1, characterized in that: The remote emergency stop button arranged in the emergency stop network can automatically match the remote control button and the test equipment while the remote control module sends the control command.

6. The remote centralized system for aircraft engine hydraulic product testing equipment according to claim 1, characterized in that: The test equipment industrial control module includes one or more test equipment industrial control computers connected in parallel to the central switch.

7. The remote centralized system for aircraft engine hydraulic product testing equipment according to claim 1, characterized in that: The remote control module includes more than one remote control computer connected in parallel to the central switch.

8. The control method of the remote centralized system of the aero-engine hydraulic product testing equipment according to any one of claims 1 to 7, characterized in that: Step 1: The test equipment manager configures the test equipment industrial control module and remote control module based on the OPC protocol; Step 2: The process personnel log in to the centralized control system operation server on the remote control module and issue test tasks according to the model of the tested product and the test type; Compile automation process files in the automation process editing platform according to the test tasks and publish them to the centralized control system operation server; Step 3: The test operator logs in to the centralized control system operation server on the remote control module, receives the test task, and sends a command to execute the automation process file to the test equipment industrial control module; The industrial control module of the test equipment executes the test steps according to the automation process documents.

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